Gnosticism

The Mystica Encyclopedia · All entries · Rewritten September 2026

Gnosticism at a glance

What the term means

The word gnosticism comes from the Greek gnosis, "knowledge," but in this context it means a direct, transforming insight rather than learned information. Some ancient Christians called themselves gnostikoi, "those who know," and early church writers applied the label to groups they considered heretical. The term "Gnosticism" itself was coined in the seventeenth century.

Modern scholars debate whether it describes a real, unified religion. Michael Williams, in Rethinking "Gnosticism" (1996), and Karen King, in What Is Gnosticism? (2003), argued that the category lumps together very different movements and was shaped by the polemics of their opponents. Many specialists now prefer more precise names such as Sethian or Valentinian Christianity, while others keep "gnostic" as a useful umbrella term.

Common themes and myth

Despite their diversity, many gnostic texts share a recognizable mythic pattern. The highest God is a perfect, unknowable being, often described in the language of apophatic theology. From this source emanate pairs of divine beings called aeons, who together make up the Pleroma, or "fullness." The last aeon, Sophia (Wisdom), acts without her partner and produces a flawed being, the demiurge, named in the Apocryphon of John as Yaldabaoth and also called Saklas and Samael. Ignorant of the realm above him, the demiurge creates the material world and rules it with his archons, and he is often identified with the creator god of Genesis.

Sparks of divine light, however, are trapped in human beings. Salvation comes when a revealer, often Christ, awakens the spirit to its true origin, allowing it to return to the Pleroma. This radical contrast between spirit and matter links gnosticism to wider forms of religious dualism, and to speculations about a heavenly first human, the Anthropos.

Teachers and schools

Church writers traced gnosticism back to Simon Magus, though historians regard this as polemic. Basilides taught in Alexandria in the early second century; his followers were later associated with the mysterious name Abraxas. Valentinus, who taught in Rome around the middle of the second century and according to Tertullian hoped to become a bishop, founded the most sophisticated school, whose members often remained within Christian congregations. The Sethians, named for Seth, the third son of Adam, produced texts such as the Apocryphon of John. Groups such as the Ophites gave the serpent of Eden a positive role. Marcion, who distinguished the just God of the Hebrew Bible from the loving Father of Jesus, is sometimes grouped with the gnostics, although many scholars treat him separately.

Sources and the Nag Hammadi discovery

For centuries gnosticism was known mainly through its critics, especially Irenaeus of Lyons, whose Against Heresies (c. 180 CE) described and refuted many systems. A few original texts survived in Coptic codices such as the Askew Codex, containing the Pistis Sophia, and the Bruce Codex.

In December 1945 farmers near Nag Hammadi in Upper Egypt found a jar containing thirteen leather-bound papyrus codices from the fourth century, written in Coptic. The collection includes the Apocryphon of John, the Gospel of Truth, the Gospel of Philip and the Gospel of Thomas, though scholars dispute whether the last is properly gnostic. These texts allowed gnostic voices to be read directly for the first time and inspired popular works such as Elaine Pagels's The Gnostic Gospels (1979).

The Nag Hammadi codices are now kept in the Coptic Museum in Cairo. Their publication took several decades, and a complete English translation, edited by James M. Robinson, appeared in 1977. The texts show that many gnostic writers were deeply engaged with the Bible, Platonic philosophy and Christian worship, and they have encouraged scholars to see early Christianity as far more diverse than later orthodoxy suggested.

Later history and legacy

Opposed by the emerging orthodox church, gnostic groups declined from the fourth century onward. Related ideas persisted in Manichaeism, founded by Mani in the third century, and dualist movements such as the Bogomils and Cathars have often been compared with the gnostics, though direct lines of descent are uncertain. The Mandaeans of Iraq and Iran, who revere John the Baptist, are often described as the only surviving gnostic religion from antiquity. In modern times gnostic themes attracted Carl Jung, novelists and modern esoteric churches, and they remain a major subject in the study of early Christianity.

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